ATI Radeon HD 4670 vs AMD Radeon HD 6790
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4670 and 1024MB VRAM Radeon HD 6790 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 4670 's Advantages
Lower TDP (59W vs 150W)
AMD Radeon HD 6790 's Advantages
Released 2 years and 7 months late
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (134.4GB/s vs 32.00GB/s)
480 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 4670
0.48 TFLOPS
Radeon HD 6790
+180%
1.344 TFLOPS
Graphics Card
Sep 2008
Release Date
Apr 2011
Radeon R700
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
1000 MHz
Memory Clock
1050 MHz
Memory
512MB
Memory Size
1024MB
GDDR3
Memory Type
GDDR5
128bit
Memory Bus
256bit
32.00GB/s
Bandwidth
134.4GB/s
Render Config
4
Compute Units
10
-
-
-
320
Shading Units
800
32
TMUs
40
8
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
128 KB
L2 Cache
512 KB
-
-
-
Theoretical Performance
6.000 GPixel/s
Pixel Rate
13.44 GPixel/s
24.00 GTexel/s
Texture Rate
33.60 GTexel/s
-
-
-
480.0 GFLOPS
FP32 (float)
1344 GFLOPS
-
-
-
Board Design
59W
TDP
150W
250 W
Suggested PSU
450 W
2x DVI
1x S-Video
Outputs
2x DVI
1x HDMI 1.3a
1x DisplayPort 1.1
None
Power Connectors
2x 6-pin
Graphics Processor
RV730
GPU Name
Barts
RV730 XT
(215-0719047)
GPU Variant
Barts LE
(215-0798002)
TeraScale
Architecture
TeraScale 2
TSMC
Foundry
TSMC
55 nm
Process Size
40 nm
0.514 billion
Transistors
1.7 billion
146 mm²
Die Size
255 mm²
Graphics Features
10.1 (10_1)
DirectX
11.2 (11_0)
3.3
OpenGL
4.4
1.1
OpenCL
1.2
N/A
Vulkan
N/A
-
-
-
4.1
Shader Model
5.0
